Improvement in base-burning stoves



LUTHER WJtt- R oo- 0F, TROY, NEW-YORK,

Letters Patent No. 93,821, dated August 17, 1869. I

IMPROVEMENT'IlS BASE-BURHTNG STOvES.

The Schedule referred to in these Letters Patent and making part of tnesame.

To all whom itnmy concern:

Be it known thatI, LUTHER. W. Hanwooo, of the city of Troy, county of Rensselaer, and State of New York, have invented certain. new and useful Improvements in Fuel-Reservoir or Base-Burning Stoves; and I do hereby'declare that the following is afull and ex act description thereof, reference being had to the accompanying drawing, audletters of reference marked thereon, making part of this specification, in which' Figure 1 is a vertical section through thecentre of thestovey 1 i Figure 2 is a vertical section,:'froih front to back thereof; V

Figure 3 is ahorizontal section, taken at the dotted line at a; of figs. 1 and 2; 1

Figure4 is a view. of the top plate Figure 5 is a vertical section thereof; and

Figured is a vertical section of a stove with one airexitpipe.

The same-letters refer to like parts in each of the sai'd'figures.

- The object of my invention is to produce an easily-' constructed, gas-tight, and more durable device for protectingthe base or lowerpart of the fuel-reservoir of dbase-burning stoves from injurious action of fire; an

The said invention consists in the improved construction of the hollow base or bottom part of the fuel-reservoir, and in the employmentfand arrange ment" of one or more distinct air-escape pipes in combination therewith and f It also consists in enlarging or bagging out the upper part of said air-escape pipes where connecting with the top plate of the stove, and covering the same with a peiforated plate, all in manner substantially as hereinafter fully described and shown, whereby a continual current of cold-atmospheric air is circulated horizontallyabout the hollow bottom part of the fuel-reservoir, to protect the same, and is then conducted therefrom, by the aforesaid air-escape pipes, in separate and distinct currents, not touching or coming in contact with the reservoir-body above said hollow base-part.

That others skilled in the art may make and use my improvements, I now describe the construction of the same, as follows:

.A is the fuel-reservoir, made either of sheet or cast iron, and suspended within the fire chamber E E of the stove. v g The bottom part of this reservoir is formed of the hollow mouth-piece-B, attached thereto, and provided with an entrance-way, H, for cold air, 'thereinto, which enters and circulates therethrongh about as shownby the directions of the blue arrows in the drawing.

This hollow mouth or base-part B, of fuel-reservoir.

A, is made in one piece; or it may be made in two pieees, and. bolted together. It is made with aitop or upper side, G, which is connected to the reservoirs body-part or cylinder'near its base, and projects therefrom over the hollow base B, which has one or more recesses or pockets formed therein,'over which, in the upper side-G aforesaid, there is madean opening or openings, provided with collars or flanges, upon which are alranged the air-conducting pipes D and-D, which condu thot air from the hollow 'base B aforesaid, in

separate and distinct currents, which do not come in I contact with thefuel-reservoir A after passing from said hollow base B into said conducting 0r air-escape pipes D, all in manner substantially as shown in the accompanying drawing. 7

These pipes, being of much less diameter than the.

' reservoir-A, are easily constructed, and more durable in use, and,"from their compact form, and small amount of joints where fitted to the fllGL-TGSBIVOll mouth-part B, are readily fitted, andkept gas-tight in their places.

One or more air-escape pipes are used, as may be deemed necessary.

These pipes D and D mayconiiect dire'ctly'with corresponding-sized apertiu'es-madezin-the top plate F of the stove; or,"an improved manner of connecting themtherewith is to form therein an upward-flaring cup or funnel-shaped mouth'or mouths, K, with the air-pipe opening 11. ring a flange thereabout in its bot- 7 tom part, on which are adjusted, gas-tight, the upper ends of the air-exit pipes D and D, substantially as shown in the accompanying drawing.

The mouth or top of this recessed cup'K is covered with a perforated guard-plate, J. The perforations therein are equal to, or may, in the aggregate, be greater in area than the cross-sectional area of the air-exit pipe D, so that while said perforated plate forms an effectual shield, to prevent coal falling into said air-exit pipes, when filling the reservoir with fuel, it presents no material obstruction,,when placed over the enlarged 'part K of the' air-exit pipe D, to, free escape of air thereont; .and the enlarged upper part of said pipes D causes a better circulation of cold air into and through the hollow base-part B of the reservoir A; and it also spreads, and'the perforated plate J- divides the escaping current of warm air, so that it is diffused better about the room.

The'other parts of the stove, as the fire-chamber E .E, fire-pot 0, its grate, and the base-part thereof, with its fines thereabout, are all made in the ordinary known avay of constructing such parts of, base-burning stoves.

In fig. 6 of the drawing, 'a 'stoveis shown having but oneair-exit pipe 1 whieh is arranged in the front part of the stove lire-chambervE, and opposite to the cold-air entrance-nay. H, cold air entering. and circulating through the incl-reservoir, hollow base-part B, and escape-pipe 1), about as shown by the blue arrows.

' By using a separate pipe or pipes, distinct from, and

whereof the body of the fuel-reservoirforms no part as ameans for the escape of hot air from the hollow base B of reservoir A, as before described, a free cireulation of cold air is caused through said base-part B, to protect it from extreme heat; andtheupper part of the reservoir-chamber may be ventilated directly into the fire-chamber E, without necessity. for 1 using ventilating-tubes, but by apertures only, as sh own at a in the drawing, made through the reservoir-side,

which make direct communication between the two chambers, thus permitting free escape, and preventing accumulation of hot gases within the reservoir, which,

if allowed, would tend to ignite the fuel therein from base. to top; andthe construction of -base-bnrning stoves is simplified, made more durable, and perfectly gas-tight, and at less cost, by my said improvements.

Having thus described my invention in base-hurriing stoves, i i

What I claim, and desire to secure by Letters Patout, is-

1. The construction of the hollow base B of fuelreservoir A with an upper side, G, connected to and projecting from the body or cylinder of the reservoir near its base, and with one or more air-pipe pockets and openings 1), substantially-as before setforth, for the purpose described.

2. The employment of one or more distinct air-pipes I), when attached to the aforesaid-constructed hollow base B of reservoir A of base-burning stores, and conducting hot air therefrom, in a distinct current or currents, without contact with or surrounding the'boilyof the fuel-reservoir A above its hollow base B substantially as describedr i 3. The combination and arrangement of one or more distinct air-conducting pipes I) with the aforesaidazonstructed hollow base B of fuel reservoir A, combustion-ich amber E, and fire-pot- G, of base-burning stoves,

arranged and operating separately from that part of the fuel-reservoir above its base B, substantially as and for the purpose described;

4. The enlargement of the top part of the air-conducting pipe or pipes D, or equivalent part K, in the top plate ll, where connecting therewith, in combination with the perforatedguardqilate J thereon, substautially was and for the purpose described.

LUTHER W. HALRWOOD.

Witnesses:

J. J. EEAVAGE,

Acsrn' F. PARK.- 

